I was in a group years ago that was a "work" swap. You could only use items found at work. One card I received had a little man made out of paper clips because the person worked in an office, the person who worked in Men's suits sent in a card with a lot of label items, and the card made out of computer circuit boards was AH-MAZING! It might be something we should do here!
KSJ- I would definitely play!! Although being in a medical office I'd have to be careful right!!